SpaceAtlas Space Object Data
NASA JPL SBDB · 2024 LD1

2024 LD1

2024 LD1 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 2.151 AU once every 3.15 yr.

Amor Observations: 109
Orbital Period · P
3.15 yr
v(q)
35.1 km/s
v(Q)
11.8 km/s
Diameter · ≈
0.32 km
TJ
3.52
Eccentricity · e
0.4976

Orbit and dynamics

The path is an ellipse reaching 1.081 AU from the Sun at perihelion and 3.221 AU at aphelion, a radial span of 2.14 AU.

Applying Kepler's third law to a = 2.151 AU gives an orbital period of 3.15 yr, or about 1,152 days.

The high eccentricity (0.498) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 9.94° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 35.1 km/s at perihelion and falls to 11.8 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 20.25 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.32 km.

Observation record and orbit quality

The current orbit solution is based on 109 observations and has a weighted RMS residual of 0.3921 arcseconds.

Condition code U = 4 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

About these computed values

Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

Orbital Parameters

Semi-Major Axis
2.151 AU
Eccentricity
0.4976
Perihelion
1.081 AU
Aphelion
3.221338 AU
Inclination
9.94°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
223.9°

Orbit diagram

The Sun sits at the focus (orange). Earth's orbit is the grey circle at 1 AU. The red dot marks the object's position at the catalog epoch.

3D orbit (interactive)

Drag to rotate; scroll or pinch to zoom. The Sun is at the focus (orange), Earth's orbit is the grey ring at 1 AU, and the red dot marks the object's current position.

Close approaches

Predicted close approaches to Earth, from NASA's Center for Near-Earth Object Studies (CNEOS).

Date (UTC)Miss distanceVelocity
2046-Aug-01 09:19 0.241028 AU
36057333 km
12.31 km/s
2065-Jun-01 22:12 0.277510 AU
41514975 km
13.44 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
20.25

Orbit Quality

RMS
0.39212
Condition
4
Orbit ID
—
Data source: NASA JPL Small-Body Database · NASA CNEOS. Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

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